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1: OTL Asylum, RE: Roger Modjeski working on new OTL (0.00)
Posted by decca4 on 2012-01-13, 09:21:16 (83.251.165.0)
Mr Futterman actually used triodes in his first two amps. The first one presented in 1954 used the 12B4S which delivered 10 W into 16 Ohms with 8 tubes and 20 W with 14 tubes with less than O.1% harmo .......
2: OTL Asylum, RE: Stax + Futterman + Bass (0.00)
Posted by decca4 on 2011-04-01, 15:17:16 (83.251.165.0)
Hi Meny years ago I used a pair of STAX ESL-6. I still have them but in storage. If yours are anything like mine they are very clean and precise but cannot handle any half-brutal signals in the botto .......
3: OTL Asylum, RE: Beveridge power amp: I would love the schematic for this one (0.00)
Posted by decca4 on 2011-01-15, 15:15:33 (83.254.129.248)
Hello Minussss3db I sent you the circuitry for the Bev sometime ago to the address you posted but have not heard anything from you. Did you receive it? .......
4: OTL Asylum, RE: Capacitor cooker / Break in? (0.00)
Posted by decca4 on 2011-01-13, 10:00:02 (83.254.129.248)
Hi Lew The Wonder Caps that I bought had magnetic connectors/leads witnessing of lack of knowledge of the manufacturer of the basics so I am afraid any cooking would not help in my particular case. I .......
5: OTL Asylum, RE: Capacitor cooker / Break in? (0.00)
Posted by decca4 on 2011-01-11, 16:29:18 (83.254.129.248)
Thanks for your answer Lew. The subject about capacitors is an interesting one. I heard from a friend of mine that was over the other night that polystyrenes are actually baked at the factory in the p .......
6: OTL Asylum, RE: Capacitor cooker / Break in? (0.00)
Posted by decca4 on 2011-01-08, 14:05:59 (83.254.129.248)
Hi Lew and others My impression is that you got upset by my questions. If you read my post again you will find that I have only asked questions, not argued any particular stand point. The way you talk .......
7: OTL Asylum, RE: Capacitor cooker / Break in? (0.00)
Posted by decca4 on 2011-01-04, 15:40:16 (83.254.129.248)
Hi Mashley and Lew Please explain to me the concept of breaking in a capacitor. What do you expect to happen to it? Is there any scientific data for anything good happening to a capacitor when you bre .......
8: OTL Asylum, RE: Beveridge power amp: I would love the schematic for this one (0.00)
Posted by decca4 on 2010-12-27, 15:57:53 (83.254.129.248)
Hi I have mailed the schematics of the Bev. If you have not received it please post again. .......
9: OTL Asylum, RE: Futterman versus whatever (0.00)
Posted by decca4 on 2010-12-21, 15:54:13 (83.254.129.248)
Hi Lew Let me reiterate: I have never addressed anyone particular at this forum with my original post. My concern has been that in some of the postings there has been a lack of stringency regarding wh .......
10: OTL Asylum, RE: Beveridge power amp (0.00)
Posted by decca4 on 2010-12-21, 15:02:37 (83.254.129.248)
If you still have a problem finding the circuitry I have it and can send it to you if you send me your mail address. Stefan .......
11: OTL Asylum, RE: Futterman versus whatever (0.00)
Posted by decca4 on 2010-12-21, 07:33:47 (83.254.129.248)
Lew and Ralph Please read my original post. I am reffering to the original Julius Futterman amplifier and not copies, interpretations or "improvements" of this amplifier. Also I am not addressing any .......
12: OTL Asylum, RE: Futterman versus whatever (0.00)
Posted by decca4 on 2010-12-19, 17:24:16 (83.254.129.248)
Tre I think that how the respective amplifiers sound should be the criteria by which you judge rather than what one thinks about a particular circuitry. My point was that if you want to make a compar .......
13: OTL Asylum, Futterman versus whatever (0.00)
Posted by decca4 on 2010-12-17, 16:39:57 (83.254.129.248)
It is a bit tiring to read about comparisons between the original Futterman and other OTL amplifiers. The Atmasphere for example is built with modern components that were not available to Julius Futte .......
14: OTL Asylum, RE: NYAL OTL 3 (0.00)
Posted by decca4 on 2010-11-22, 17:18:37 (83.254.129.248)
Hi Naidu I am in to my second pair of Futterman H3AA which has the basically the same circuitry as your OTL 3. In my first pair which I used many years ago there was a tendency for the anode plates to .......
15: OTL Asylum, RE: NYAL OTL 3 (0.00)
Posted by decca4 on 2010-11-21, 13:50:32 (83.254.129.248)
Lew When you say bypassing the electrolytic output capacitors do you then mean replacing the output capacitors or mounting the new film capacitors in parallel with the output capacitors? By the way ha .......
16: OTL Asylum, RE: Futterman H3AA bias (0.00)
Posted by decca4 on 2010-10-08, 12:47:48 (83.254.129.248)
Thanks Lew, I will keep looking at this thread. Are you familiar with this circuit? decca4 .......
Found total of 16 records, Query: , Author: decca4 in All Forums, Time: 0 sec.